IV25284: EXCEPTION-SPECIFICATION IN TEMPLATE PARAMETER

October 2012 PTF for XL C/C++ for AIX, V11.1
February 2013 PTF for XL C/C++ for AIX, V11.1
XL C/C++ for AIX Fix Pack 14 (May 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 15 (August 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 16 (November 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 17 (February 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 18 (May 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 19 (August 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 20 (November 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 21 (April 2015 PTF) for 11.1
XL C/C++ for AIX Fix Pack 22 (September 2015 PTF) for 11.1
XL C/C++ for AIX Fix Pack 23 (March 2016 PTF) for 11.1
XL C/C++ for AIX Fix Pack 24 (September 2016 PTF) for 11.1

APAR status

• Closed as program error.

Error description

• Instead of the expected type of "void (*)()", the compiler is
  using the exception-specification as part of the function's
  signature as "void (*)() throw()".  This can cause errors with
  template usage when a function with an exception-specification
  is used as a template type parameter.
  
  
     ==== TESTCASE ====
  
  void f(T sth)
  {
          typedef T t;
  }
  
  void zzz() throw() {}
  
  int main( int argc, char **argv )
  {
          f(&zzz);
          return 0;
  }
  
  
  "test.cpp", line 3.19: 1540-1139 (S) An exception-specification
  can appear only in a function or pointer declaration.
  "test.cpp", line 2.6: 1540-0700 (I) The previous message was
  produced while processing "f<void (*)() throw()>(void (*)()
  throw())".
  "test.cpp", line 7.9: 1540-0700 (I) The previous message was
  produced while processing "main(int, char **)".
  

Local fix

• Remove exception-specification from function.
  

Problem summary

• PROBLEM DESCRIPTION:
  Exception specification included during template argument
  deduction.
  
  USERS AFFECTED:
  The problem will appear if a user instantiates a template
  parameter with a function type containing an exception
  specification.
  

Problem conclusion

• The problem has been resolved.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  LI77055

Fix information

• Fixed component name

  XL C/C++ AIX

• Fixed component ID

  5724X1300

Applicable component levels

• RB10 PSY U855106

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